In a print production system, the ability to associate each page with its original electronic form enables a number of important automation services, such as alternate-source page insertion, page/sheet routing and aspects of JDF-compliance. This work demonstrates the efficacy of a method capable of matching a scanned version of an incoming page to an original RIP, and was tested with a library of a thousand sample commercial pages. Frequency domain analysis suggests that low-resolution representations of pages can be used for matching purposes. This notion is corroborated by experimental results; a 98% correct matching is achieved for pages reduced to a bit-depth of 1-bit at only 1 dpi using a simple XOR method, and a perfect matching rate was achieved using pages represented at 16 dpi at a variety of bit depths using a sum of squared errors measurement. The method is implemented without placing any extra ink on each page.